Floor mat



FIG. 1 is a top plan view of a floor mat showing my new design;

FIG. 2 is a bottom view thereof;

FIG. 3 is a side elevational view thereof, the opposite side being a mirror image thereof;

FIG. 4 is an enlarged scale fragmentary side elevational view, taken from the area shown in FIG. 3;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a rear elevational view thereof.

The broken line showings form no part of the claimed design. 

The ornamental design for a floor mat, as shown and described. 